ICHTHYOLOGY and LAKE ECOLOGY. Let’s Talk Lakes!!!

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Presentation transcript:

ICHTHYOLOGY and LAKE ECOLOGY

Let’s Talk Lakes!!!

Lake Zones

10 %

FOOD CHAIN

AQUATIC PLANTS

OLIGOTROPHIC, MESOTROPHIC, EUTROPHIC

TROUT NEED COLD, CLEAN WATER

BULLHEADS CAN TOLORATE WARM, MUDDY WATER

PHOSPHORUS

WINTER KILL!

TURBIDITY AND TEMP.

BOG STAINED WATERS

BIOLOGICAL MAGNIFICATION

MISSISSIPPI WATERSHED

HARD WATER VS. SOFT WATER Mineral in bedrock (Leeching)

Boundary Waters Canoe Area Glacial Erosion, Acid Precipitation?

Fish Survey

EXTERNAL ANATOMY

INTERNAL ANATOMY